Apple is cooked. Not only are they going to get decimated in China, but they are going to see demand destruction in the US due to tariffs. And neither Trump nor Xi cares about Apple.

They’ve been spending tens of billions a year in their chip industry.

All electronics are made in Asia. So there will be no higher prices for consumers in the EU.

US consumers will get hammered with anywhere from 25% to 55% price increase in electronics.

There’s already an autonomous metro.

Feasible, yes. Practical, hard to say. Good idea, yes.

RISC-V is open-source architecture based in Switzerland (although it started in University of California).

One thing going for it is China is spending billions a year towards RISC-V adoption so they do not get sanctioned by the US. You need money and engineers working on it towards these type of open source to compete with existing players.